de Coca-Sinova, A., Mateos, G. G., Gonzalez-Alvarado, J. M., Centeno, C., Lazaro, R., & Jimenez-Moreno, E. (2011). Comparative study of two analytical procedures for the determination of acid insoluble ash for evaluation of nutrient retention in broilers. Spanish Journal of Agricultural Research, 9(3), 761-768. https://doi.org/10.5424/sjar/20110903-439-10